Study on Absorption Signal Interference of Gas Concentration Measurement Using Laser Absorption Spectroscopy

Saerom Maeng, Sunghyun So, Miyeon Yoo, Jungho Hwang, Changyeop Lee

Research output: Contribution to journalConference article


In order to optimize the combustion condition of the combustion system, it is important to know the information of the physical properties which vary during combustion. Gas concentration and temperature are the major target properties but it is difficult to measure exactly at combustion system. In this paper, a distributed feedback diode laser which wavelength is tunable in accordance with a function generator's output wave is applied to realize the laser absorption spectroscopy measurement. A concentration measuring test for 99% CO2 gas was performed as basic experiment and major experiments were conducted on separation of interfered absorption signals at CO2 and CO mixed condition.

Original languageEnglish
Article number14002
JournalMATEC Web of Conferences
Publication statusPublished - 2016 Oct 3
Event3rd International Conference on Mechanics and Mechatronics Research, ICMMR 2016 - Chongqing, China
Duration: 2016 Jun 152016 Jun 17


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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